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Giovanni Valtorta et alii – Italy – Session 5 – Paper 1171

ARCHITECTURE AND FUNCTIONAL SPECIFICATIONS OF DISTRIBUTION AND TRANSMISSION CONTROL SYSTEMS TO ENABLE AND EXPLOIT ACTIVE DEMAND. Giovanni Valtorta et alii – Italy – Session 5 – Paper 1171. ADDRESS PROJECT.

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Giovanni Valtorta et alii – Italy – Session 5 – Paper 1171

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  1. ARCHITECTURE AND FUNCTIONAL SPECIFICATIONS OF DISTRIBUTION AND TRANSMISSION CONTROL SYSTEMS TO ENABLE AND EXPLOIT ACTIVE DEMAND Giovanni Valtorta et alii– Italy– Session 5 – Paper1171

  2. ADDRESS PROJECT ADDRESS (“Active Distribution networks with full integration of Demand and distributed energy RESourceS”) is a 4-year large-scale R&D project launched in June 2008 receiving funding from the European Community's Seventh Framework Program (FP7/2007-2013) under grant agreement n° 207643. Scope: to deliver a comprehensive commercial and technical framework for the development of “Active Demand” (AD) in the smart grids of the future. ADDRESS is about enabling the active participation of domestic and small commercial consumers in power system markets and in the provision of services to different power system players. The customers’ flexibility is offered to the energy market through Aggregators

  3. System Operators and ActiveDemand The ADDRESS project deals with the electricity consumption flexibilities of domestic and small commercial consumers, including the flexibilities of micro-generation and storage that may be present at their premises. The behavior of customers can be different from expected and the providers of AD products could be concentrated in such a way to determine network violations In this framework SOs have to ensure, anyway, a reliable operation of their networks. SOs control systems have to be upgraded introducing new functions to enable and exploit AD business

  4. DSO Functional Architecture Three main Control Levels: DSO Control Centre HV/MV substation MV/LV substation

  5. 1. DSO ControlCentreLevel • ActiveDemand Management System • Market Tools • Distribution Management System newfunctions Location information Flexibilitytable AD productsvalidation AD productrecording Coordinationwith TSO Forecasttools DistributionState Estimation Volt/Varcontrol Decisionmakingprocesstobuy AD DSO functionstoenableand exploit AD business

  6. 2. HV/MV substation level • Voltage Regulation/Power Flow Control • Centralised/decentralisedfunctions • New functionalities for the primary substation devices

  7. 3. MV/LV substation level • Measurement equipment (sensors, transducers, auxiliaries,…). • RTU, in order to send and to receive data to/from the upper levels and receive data from the lower level. • MV/LV intelligence in order to control part or the whole underlying LV network.

  8. TSO simplified Functional Architecture • Many functionalities needed to fulfill the AD requirements are already available. • The new ones are: • - Location information (macro load area) • - Flexibility Table computation • AD products validation • Coordination with DSO

  9. DSO and ActiveDemand • DSO provides services to enable AD Business: Location information Flexibility table AD products validation • DSO buys AD products for network operation: Calculate AD need to solve network problems Decision making process ADDRESS developedalgorithms and prototypestoallow DSO toperformthesefunctions

  10. Load areas: • Group of consumers “equivalent” from network operation point of view; • Part or whole LV lines, one or more MV/LV substations, MV feeders, busbars... DSO: Location information provision (1) • Service localization • Technical validation • Macro Load Areas: aimed for the TSO needs

  11. DSO: Flexibility Table Pubblication (2) TSO coordination TSO algorithms and processes • Definition based on DSO/TSO needs • Values given at load area level • No DSO/TSO commitment, guidelines for facilitating approval • Periodically updated by DSO/TSO DSO algorithms and processes DSO network and historical measurement database TSO FT DSO FT Available to market players

  12. DSO: AD products validation (3) TechnicalValidationneeds: • Ensure coordination between DSO and TSO • Ensure stability of the services provided by DSO and TSO How is the technical validation process established? • Interaction between Aggregator and DSO/TSO on service activation: Approval needed • The flexibility table, periodically updated by DSO/TSO, for helping the market players to formulate their bids • The need for regulation in order to establish a transparent and non discriminatory framework

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